Adding a source folder directly, rather than its contents

Typically, you'll have a source structure like so: "src/package/path/MyClass.java". When you add src to the list of sources, it will include the contents, e.g. package.path.MyClass. That is sensible.

There is a project I'm working on that has a resource folder which I'd like to add directly. E.g. Add the folder itself, not the folder's contents. For example, suppose I have structure: "images/img.png". Currently, if I add images to sources, then img.png gets copied directly to the build directory, instead of images/img.png. As a workaround, I have to rearrange the structure to be something like "src_images/images/img.png", or move into "src/images/img.png". Hope that makes sense.

The issue does not name implementation files or tests. Start by locating the extension's handling of configured source folders and reproduce the images/img.png example; done means adding images preserves that folder in the build output while existing source-package behavior remains unchanged.